Fit Newmark displacement for one scenario row

Usage

fitDnScenario(row, weights)

Arguments

row: one-row data.table containing UHS, ky, Ts, Mw, NS, TR, IDg, IDm, Vs30, and ID. A legacy Rrup column is tolerated and ignored (the correlation model has no distance dependence). UHS may hold either a quantile spectrum or an analytic finite mixture accepted by sampleSaCorr().
weights: named numeric vector of active Newmark model weights by IDn.

Value

list with curve and draws data.tables. curve includes individual model rows and aggregate IDn rows: ensemble, rigid, and flexible. draws contains raw per-realisation model draws and the sampled PGA in g as PGA.s.